/Engine/Plugins/Runtime/GeometryProcessing/Source/DynamicMesh/Public/Operations/GroupTopologyDeformer.h
Call EdgeSpanFunc for every groupFEdgeSpanin the modified-area ROI that will be modified by the solver (does not include edges that are encompassed by the Handle)
void EnumerateROIEdges ( [TFunctionRef](API\Runtime\Core\GenericPlatform\TFunctionRef)< void(const [FEdgeSpan](API\Runtime\GeometryCore\FEdgeSpan) &EdgeSpan)> EdgeSpanFunc ) const